/**
 * Licensed to Cloudera, Inc. under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  Cloudera, Inc. licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.cloudera.distributed;

import java.net.SocketAddress;

/**
 * Identifier for a single node. 
 * 
 * TODO(henry): This is a work-in-progress: using 'SocketAddress' 
 * ties this class to a particular set of implementations.
 */
abstract public class NodeId {    
  abstract public String toString();      
  abstract public SocketAddress toAddress();
  
  // TODO(henry): should implement comparable interface
}
